How to factory reset BLACKVIEW BV4000? How to wipe all data in BLACKVIEW BV4000? How to bypass screen lock in BLACKVIEW BV4000? How to restore defaults in BLACKVIEW BV4000?
The following tutorial shows all method of master reset BLACKVIEW BV4000. Check out how to accomplish hard reset by hardware keys and Android 7.0 Nougat settings. As a result your BLACKVIEW BV4000 will be as new and your MediaTek MT6580A core will run faster.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.